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发明名称
Einrichtung zur Wiedergabe von Tonaufzeichnungen.
摘要
申请公布号
CH192397(A)
申请公布日期
1937.08.15
申请号
CHD192397
申请日期
1936.05.15
申请人
FILMGRAMMPHON A. G.
发明人
G. FILMGRAMMPHON A.
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主分类号
代理机构
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